Period	Persons
1967-01-01	1278416
1972-01-01	1633558
1977-01-01	1946630
1982-01-01	2359755
1987-01-01	2846000
1992-01-01	3733000
1997-01-01	4459000
2002-01-01	5038000
2007-01-01	5661000
2012-01-01	6318000